Apply geometry to packaging, water tanks, and design — a culminating unit that revisits the year's measurement ideas.
Each topic is a short page: read the walkthrough, watch the video, try the practice, then take a quick quiz. Go in order or jump to what you need.
Use triangles and rectangles to find the area of any polygon.
Unfold a solid into a flat net and add up every face.
Same length × width × height — even when the edges are fractions.
By the end of this unit, you should be able to:
Hand-picked links from Khan Academy and trusted worksheet libraries.
